TORCS is a Freeware 3D racing car simulator using OpenGL. The game allows you to drive in races against opponents simulated by the computer and to develop your own computer-controlled driver (also called a robot).

You can use either a wheel or keyboard or mouse to drive yourself. Choose from 42 different cars, 30 tracks, more than 50 opponents to race against.

The gameplay allows different types of races from the simple practice session up to the championship.

Enjoy racing against your friends in the split screen mode with up to four human players.

Limitations:

Be aware of that not the whole TORCS distribution content has the same license. Especially the cars in the cars/kc-*, cars/pw-* and cars/vm-* directories have special licenses, have a look at them.
The rest of the distribution is licensed according the GPL and the Free Art License.